The Biogel PI Indicator Underglove is a blue, sterile, synthetic surgical powder-free glove that can be used with the Biogel PI Overglove to create a colored puncture indication system. The Biogel PI Indicator System is proven to provide the clearest, fastest and largest colored puncture indication available. Mandatory only for Department of Veterans Affairs. 50 pairs per box, 4 boxes per box.